Penetration
In telecommunication, the term penetration has the following meanings:
- The passage through a partition or wall of an equipment or enclosure by a wire, cable, or other conductive object.
- [The] unauthorized act of bypassing the security mechanisms of a cryptographic system or AIS.
- The passage of a radio frequency through a physical barrier, such as a partition, a wall, a building, or earth.
In business, penetration is often short for market penetration, the degree to which a product or service is known and/or used among potential customers.
In firearms, penetration refers to the ability of piercing into the target's body armor and body itself; higher penetration means that it is more likely to pierce effective body armor.
Sexual penetration (as opposed to outercourse):
- sexual intercourse
- fellatio
- anal sex
- sexual penetration with a finger or object
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